GARDEN FLOWERS. 321 



R. Manglesii (Mangles's) ; half-hardy annual ; I foot ; flowers 

 pink, in July ; Swan River ; 1832. 



RHODOCHITON. [Scrophularineae.] R. volnbile, once 

 called Lophospermum Rhodochiton, is a plant with much the 

 habit and appearance of Lophospermum, but more slender ; 

 the blossoms have a saucer-shaped rosy calyx, and a deep 

 purple, almost black corolla. The plant is increased by cut- 

 tings, which may be put in at any period between March and 

 August, in sandy soil, and placed in a close shady place : 

 mild heat assists their rooting. The young plants soon ac- 

 quire strength, when placed in a moderate bulk of compost, 

 which should consist of loam, peat, and leaf-mould in equal 

 proportions, and used in rather a rough or lumpy condition. 

 It is adapted for the open ground, and may be grown to a 

 very pretty state ; the branches being trained around several 

 upright stakes forming a cylinder. In any case, the plants 

 should be renewed annually. It requires the usual treatment 

 of bedding out climbers. 



R, -volubile (twining); greenhouse climbing perennial ; 12 feet; 

 flowers rose and chocolate, in June ; Mexico; 1833. 



RHODODENDRON. Rose-bay. [Ericaceae.] One of the 

 most ornamental families of evergreen flowering shrubs, 

 comprising great variety both of foliage and flower. Some 

 of the wild species have superb flowers ; but the seedlings 

 raised in English gardens carry the splendor of this family 

 greatly beyond that of any of the original species. R. Ca- 

 tawbicnse, which has the best habit of all the American spe- 

 cies, has been so improved from seed, that varieties may 

 now be had of almost every color. The Indian and hardy 

 species, too, have been so crossed, that the most superb 

 varieties have been produced with the best qualities of sev- 

 eral species combined. They must be seen in flower to be 

 purchased with advantage. Peat soil is the most suitable 



